added ga

index.html

@@ -7,7 +7,17 @@
   <title>Design Principles</title>
   <meta name="description" content="Design Principles that break design rules">
   <meta name="viewport" content="width=device-width, initial-scale=1">
-
+  <script>
+          if (navigator.userAgent.indexOf("Speed Insights") == -1) {
+                  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+                  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+                  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+                  })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
+                  ga('create', 'UA-100980700-1', 'auto');
+                  ga('send', 'pageview');
+                }
+
+          </script>
   <style>
     @font-face {
        font-family: system;